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Ratio class - 14(Variation - 1)
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Variation part - 1

## Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta
Engineer by degree Mathematician by Heart. Having 22 years of teaching experience. More than 20000 students selected.

U
dear mam apk sare lessons buhat khob
Sujata
a year ago
🙂🙂🙏🙏
sir alloys wale ques aapne nahi karaye aur replaced wale bhi
Bharat Gupta
2 years ago
dear check my alligation course in that course I discussed all types of alloys and replacement questions on ratio
Nikhil Mathur
2 years ago
okkl sir thanxxx
sir alloys wale ques aapne nahi karaye aur replaced wale bhi
sir alloys wale ques aapne nahi karaye aur replaced wale bhi
sir alloys wale ques aapne nahi karaye aur replaced wale bhi
sir alloys wale ques aapne nahi karaye aur replaced wale bhi
1. RATIO AND PROPORTION Class -15 (Variation part - 1)

2. Variation When two or more quantities are related upon each other and when one of them is changed, the other(related) quantity is also changed woru dessss.invens relatin] There are two types of variation. (i) Direct Variation (ii) Inverse Variation

3. Variation When two or more quantities are related upon each other and when one of them is changed, the other(related) quantity is also changed There are two types of variation. (i) Direct Variation : A < (ii) Inverse Variation: rm)

4. If x varies as y, and y 9 when x 18, find x when y a. 60 b, 30 c. 72 d.18 30

5. If x varies as y, and y = 9 when x = 18, find x when y = 30 a.60 b. 30 c. 72 d.18 2-

6. If A varies as B and inversely as C. A is 12 when B is 6 and C is 2. What is the value of A when B is 12 and C is 3? a. 16 b. 25 c. 12 d. 20

7. If A varies as B and inversely as C. A is 12 when B is 6 and C is 2. What is the value of A when B is 12 and C is 3? a. 16 b. 25 c. 12 d. 20 Ad A 812, c 3 3

8. A quantity x varies inversely as the square of y. Given that x = 4, when y 3, the value of x when y 6 is: a. 4 b.3 c. 2 d.!

9. A quantity x varies inversely as the square of y. Given that x = 3, the value of x when y = 6 is: .4 b. 3 . 2 d.1 4, when y 2. 34 k - 36

10. If x varies inversely as y2-1 and is equal to 24 when y y 5: a. 99 10, find x when b. 101 c. 91 d. 93